<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
		
		* {
			margin: 0px;
			padding: 0px;
		}
		.nav{
			height: 35px;
			width: 552px;
			background-color: antiquewhite;
			margin: 0 auto;
		}
		
		.nav ul li{
			list-style: none;
			height: 33px;
			width: 90px;
			text-align: center;
			line-height: 33px;
			border: 1px solid #000000;
			float: left;
			margin-left: 5px;
			margin: 0px;
			padding: 0px;
		}
		.nav ul li ul li{
			display: none;
			cursor: pointer;
			background-color: lightcyan;
		}
		.nav ul li:hover ul li{ 
			display: block;
		}
		.nav ul li ul li:hover{
			background-color: lightseagreen;
		}
		.nav ul li#current{
			background: url(img/7.gif);
			/* background-position: 0px 30px */
		}
		.nav ul li#current:hover{
			background: url(img/7.gif);
			background-position: 0px 30px;
		}
		
		</style>
	</head>
	<body>
		<div class="nav">
		<ul>
			<li id="current">水果
			<ul>
				<li>橘子</li>
				<li>苹果</li>
				<li>香蕉</li>
			</ul>
			</li>
			
			<li id="current">水果
			<ul>
				<li>橘子</li>
				<li>苹果</li>
				<li>香蕉</li>
			</ul>
			</li>
			<li id="current">水果
			<ul>
				<li>橘子</li>
				<li>苹果</li>
				<li>香蕉</li>
			</ul>
			</li>
			<li id="current">水果
			<ul>
				<li>橘子</li>
				<li>苹果</li>
				<li>香蕉</li>
			</ul>
			</li>
			<li id="current">水果
			<ul>
				<li>橘子</li>
				<li>苹果</li>
				<li>香蕉</li>
			</ul>
			</li>
			<li id="current">水果
			<ul>
				<li>橘子</li>
				<li>苹果</li>
				<li>香蕉</li>
			</ul>
			</li>
			
		</ul>
		</div>
	</body>
</html>
